Elctrolytic cell.



E. E. mswomats a; P. McDOBMAN.

ELECTROLYTIC (ELL. APPLICATION FILED SEPT. 2a. 1948.

INVENTOR- v/i m/M 7%. ATTORNEYL entrain. NISWONGER, or DAY new YORK, assrenons so A conroanrron or onto.

"1 ie Cells, of which the following is a specication.

The

. to provlde an electrolytic cellin which shunt currents are reduced to the minimum, whereby less amperage is required to produce a given number of liters of the solution.

It is necessary, where a cell is to be emloyed for ho ital use in producing sodium Eypochlorite or antiseptic purposes, that it be adapted to Operate efliciently .on less than 25 amperes of current under standard,

voltage. It is one of the objects of our invention to accomplish this purpose, by reducing the size of the graphite electrodes and at the same time providing insulating means that coiiperate-with them to'reduce the shunt currents and temperature, whereby the cell may operate efliciently on the amperage available.

It is another object of our invention to provide terminal electrodes that extend well above the to of the cell, to avoid copper connections 51M? become corroded by contact with the electrolyte, causing copper salts to enter the latter.

The preferred form of embodiment of our I invention is illustrated in the accompanyerably constructed of hard rubber.

ing drawings, of which Figure 1 is a to plan view of our improved electrolytic cel with the terminal electrodes removed. Fi 2 is a longitudinal section taken 'throug said cell. And Fig. 3 is a cross sectional view thereof. Throughout the specification and drawings, similar reference characters designate corresponding parts.

In a detailed description of the preferred form of embodiment of our invention, the numeral designates an electrolytic cell rectangular in longitudinal section and pi ehfe side walls 2 2 of said cell contain oppositely disposed vertical grooves which receive at principal object of our invention is ELnc'rnoLYrIcj CELL.

Specification of Letters Patent.

Application filed September 28, 1818. Serial No. 256,020.

Patented Jan. 21, 19 19.

4 their lower ends, electrodes 3 of reduced size and preferably constructed of graphite. These electrodes 3 rest upon the bottom of the cell, in which there is provided, below the middle portions of said electrodes, a longitudinal channel 4 which conducts the solution to a faucet 5 at the end of the cell, f l'0l(lil which it may be drawn ofl when desire and extending upwardly through its-respectlve grooves in the side walls 2 2 to the top thereof, is an insulating member ably constructed of glass. These insulating members are provided to eliminate the'shunt currents that otherwise would be formed when the size of the electrodes 3 are reduced. This reduction in their size is necessary when, for example, the cell is required to produce sodium hypochlorite for antiseptic purposes in hospitals where the current is of less than 25 amperes. Y

Too high an amperage is required for electrodes that extend all the way to the top of the cell, and when their $120 is reduced without providing any insulation, shunt currents are formed that will raise the temperature and lower the efficiency of the cell where it is required to operate under the conditions above mentioned. By providing the glass insulating members 6, shunt duced to the minimum, with the result that the cell will operate at 6 prefer-i Resting upon the top of each electrode 3, I

currents are rei the proper tempera ture and efliciency when only a low amper age is available.-

Provided at each end of the cell 1 I a transverse groove 7 adapted to receive a pair of terminal electrodes 8 8 which extend all the Way to the bottom of the cell and rise well above its electrodes 8 8 are preferably constructed of gra-phite, and to their top portions are bolted copper bars 9 to receive the lead wires not shown. It will Joe observed that these terminal electrodes 8 8 extend well above the top of the cell for the purpose of preventing any contactbetween copper connections and the electrolyte. When exposed to the latter, such connectionsbecome corroded, causing copper salts to enter and poison the solution. I

We do not wish to be limited the details construction and arrangement herein top. These terminal 7 shown and described, and any ch -hinges or modifications may be made thereinwithin the scope of the subjoined claims.

Having described our invention, we claim:

1'. In an electrolytic cell, a, series of electrodes of less height thanthe cell, mounted inthe'bottom portion of the latter, and insuleting members resting upon said electrodes fior'the purpose specified.

2. Inan electrolytic cell, a series of-ver- "tically disgosed electrodes of less height than the cell, mounted in the bottom poition thereof, and glass insulating members restingupon said electr0des.and extendin to the top of thecell for the purpose speci ed.

In testimony whereof We have hereunto set our hands, ELMER E. Nxswonomthe 20th day of September, 1918, and PAUL McDon- MAN the 245th day of Sept; 1918.

'ELMER E. NISWONGER.

PAUL YMeDORMAN. 

